Home/CVE/An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvnc
CVE

CVE-2020-14399

An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvnc

An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed.

HIGH · CVSS 7.5 EPSS 0.02462
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

4
libvncserver project libvncserver< 0.9.13
debian linuxall versions
opensuse leapall versions
canonical ubuntu linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Jun 2020 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

8
suse-csafopenSUSE-SU-2024:10598-1
suse-csafSUSE-SU-2020:2167-1
suse-csafopenSUSE-SU-2020:1056-1
usnUSN-4434-1
suse-csafopenSUSE-SU-2020:1025-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.htmlMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1860354Issue TrackingPatchThird Party Advisory
https://github.com/LibVNC/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a618174d3c2dPatch
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13Release Notes
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